摘要:
An electrophotographic photoconductor includes an electroconductive support and a single-layered photoconductive layer formed thereon, containing a charge transporting material, a binder resin, and a simultaneously pulverized mixture including at least one disazo pigment of formula (1) and at least one trisazo pigment of formula (2), which is obtained by simultaneously pulverizing those azo pigments: ##STR1## wherein R.sup.1 and R.sup.2 each is hydrogen, a halogen atom, trifluoromethyl group, nitro group or cyano group; R.sup.3 is hydrogen, chlorine, fluorine, iodine, bromine, nitro group or cyano group; and Ar.sup.1, Ar.sup.2 and Ar.sup.3 each is a coupler radical, which may be the same or different.
摘要翻译:电子照相感光体包括导电载体和形成在其上的单层光导电层,其中含有电荷输送材料,粘合剂树脂和同时粉碎的混合物,其包含至少一种式(1)的双偶氮颜料和至少一种三偶氮颜料 (2)其中R1和R2各自为氢,卤素原子,三氟甲基,硝基或氰基;(2)通过同时粉碎这些偶氮颜料获得的式(2) R3是氢,氯,氟,碘,溴,硝基或氰基; Ar 1,Ar 2和Ar 3各自为可以相同或不同的成色剂基团。
摘要:
A pyrazine compound of formula (I) and a pyrazine compound of formula (II): ##STR1## wherein R is an unsubstituted or substituted phenyl group, an unsubstituted or substituted naphthyl group; and an electrophotographic photoconductor which includes an electroconductive support and a photoconductive layer formed thereon containing a charge generating material and a charge transporting material which is any of the above-mentioned pyrazine compounds of formula (I) and formula (II).
摘要:
A pyrazine compound of formula (I) and a pyrazine compound of formula (II): ##STR1## wherein R is an unsubstituted or substituted phenyl group, an unsubstituted or substituted naphthyl group; and an electrophotographic photoconductor which includes an electroconductive support and a photoconductive layer formed thereon containing a charge generating material and a charge transporting material which is any of the above-mentioned pyrazine compounds of formula (I) and formula (II).
摘要:
A positively-chargeable single-layered type organic electrophotographic photoconductor composed of an electroconductive support and an organic single-layered photoconductive layer containing a charge generating material, an organic positive hole transporting material and an organic acceptor compound which are dispersed in a matrix binder agent, with the relationship of the oxidation potential (E.sub.ox) of the charge generating material.ltoreq.the oxidation potential (E.sub.ox) of the organic positive hole transporting material being satisfied.
摘要:
An electrophotographic photoconductor is composed of an electroconductive substrate, and a photoconductive layer, formed thereon, which contains a charge generating material, and a vinylidene compound of formula (I): ##STR1## wherein Ar represents a metallocene group; and X represents cyano group, an alkyl group having 1 to 8 carbon atoms, or an alkoxycarbonyl group represented by --COOC.sub.n H.sub.2n+1, in which n is an integer of 1 to 8; or a vinylidene compound of formula (II):Ar--CH.dbd.C(COOR).sub.2 (II)wherein Ar represents a metallocene group; and R represents an alkyl group having 1 to 8 carbon atoms, which may form a ring in combination of two of the alkyl groups, each of these vinylidene compounds serving as a charge transporting material.
摘要翻译:电子照相感光体由导电性基体和形成于其上的光电导层(含有电荷产生材料)和式(I)的亚乙烯基化合物构成:其中Ar表示茂金属基团; X表示氰基,碳原子数1〜8的烷基或-COOC n H 2n + 1表示的烷氧基羰基,n为1〜8的整数。 或式(II)的亚乙烯基化合物:Ar-CH = C(COOR)2(II)其中Ar表示茂金属基团; R表示碳原子数为1〜8的烷基,可以与两个烷基结合形成环,这些亚乙烯基化合物均作为电荷输送材料。
摘要:
A conductive paste for a terminal electrode of a multilayer ceramic electronic part, comprising (A) a spherical conductive powder which comprises chiefly copper, and which has a vitreous thin film on at least a portion of the surfaces thereof, (B) a flaky conductive powder comprising chiefly copper, (C) a glass powder, and (D) an organic vehicle, and may further contain (E) an aliphatic amine. When baked to form terminal electrodes for multilayer ceramic electronic parts, this paste exhibits extremely superior binder removal characteristics at low temperatures, and furthermore, it is superior in terms of oxidation resistance, binder removal characteristics and firing characteristics with no need for strict control of the firing conditions, thereby dense terminal electrodes that are superior in terms of adhesion and conductivity can be formed.
摘要:
A conductive paste for a terminal electrode of a multilayer ceramic electronic part, comprising (A) a spherical conductive powder which comprises chiefly copper, and which has a vitreous thin film on at least a portion of the surfaces thereof, (B) a flaky conductive powder comprising chiefly copper, (C) a glass powder, and (D) an organic vehicle, and may further contain (E) an aliphatic amine. When baked to form terminal electrodes for multilayer ceramic electronic parts, this paste exhibits extremely superior binder removal characteristics at low temperatures, and furthermore, it is superior in terms of oxidation resistance, binder removal characteristics and firing characteristics with no need for strict control of the firing conditions, thereby dense terminal electrodes that are superior in terms of adhesion and conductivity can be formed.
摘要:
An electrophotographic photoconductor is composed of an electroconductive substrate, and a photoconductive layer formed thereon, which contains a charge generating material, and a vinylidene compound of formula (I): ##STR1## wherein Ar represents an aromatic group; and X represents cyano group, an alkyl group having 1 to 8 carbon atoms, or an alkoxycarbonyl group represented by --COOC.sub.n H.sub.2n+1, in which n is an integer of 1 to 8; or a vinylidene compound of formula (II):Ar--CH.dbd.C(COOR).sub.2 (II)wherein Ar represents an aromatic group; and R represents an alkyl group having 1 to 8 carbon atoms, which may form a ring in combination of two of the alkyl groups, each of these vinylidene compounds serving as a charge transporting material.
摘要翻译:电子照相感光体由导电性基体和形成在其上的光电导层构成,含有电荷产生材料,和式(I)的亚乙烯基化合物:其中Ar表示芳族基团; X表示氰基,碳原子数1〜8的烷基或-COOC n H 2n + 1表示的烷氧基羰基,n为1〜8的整数。 或式(II)的亚乙烯基化合物:Ar-CH = C(COOR)2(II)其中Ar表示芳族基团; R表示碳原子数为1〜8的烷基,可以与两个烷基结合形成环,这些亚乙烯基化合物均作为电荷输送材料。
摘要:
An image forming method including the steps of bringing an image-forming liquid in which finely-divided resin particles are dispersed in a dispersion medium into contact with an image-bearing member capable of repelling the dispersion medium of the image-forming liquid, and selectively applying heat and/or pressure to the image-bearing member or the image-forming liquid by use of a heat-application system and/or pressure-application system in accordance with signals corresponding to an image to be formed to deposit imagewise the finely-divided resin particles in the image-forming liquid on the surface of the image-bearing member, thereby obtaining a resin image corresponding to the image on the image-bearing member. In addition, an image forming apparatus for the above-mentioned image forming method is disclosed.
摘要:
Cycolpentadiene derivative compounds, and an electrophotographic photoconductor comprising one cyclopentadiene derivative compound are disclosed. The cyclopentadiene derivative compounds are novel and useful for use in a photoconductive layer, and readily soluble in a binder resin. The electrophotographic photoconductor can be prepared by using a simple, effective production method. The electrophotographic photoconductor comprising one cyclopentadiene derivative compound provides a good light sensitivity and high durability.